More uClibc++ build fixes

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5299 42af7a65-404d-4744-a932-0658087f49c3

configs/sim/README.txt

@@ -215,6 +215,19 @@ cxxtest
      b. Execute 'make menuconfig' in nuttx/ in order to start the
         reconfiguration process.
 
+  3. At presenet (2012/11/02), this example builds only with exceptions
+     disabled (CONFIG_UCLIBCXX_EXCEPTIONS=n).  And even then, it will
+     not run.
+
+     The reason that the example will will not run on the simulator has
+     to do with when static constructors are enabled:  In the simulator
+     it will attempt to execute the static constructros before main()
+     starts. BUT... NuttX is not initialized and this results in a crash.
+
+     To really use this example, I will have to think of some way to
+     postpone running C++ static initializers until NuttX has been
+     initialied.
+
 mount
 
   Description

configs/sim/cxxtest/Make.defs

@@ -45,7 +45,11 @@ else
 endif
 
 ARCHCPUFLAGS = -fno-builtin
+ifeq ($(CONFIG_UCLIBCXX_EXCEPTION),y)
   ARCHCPUFLAGSXX = -fno-builtin
+else
+  ARCHCPUFLAGSXX = -fno-builtin -fno-exceptions
+endif
 ARCHPICFLAGS = -fpic
 ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
 ARCHWARNINGSXX = -Wall -Wshadow